金川泥炭中发现硅藻  

DISCOVERY OF DIATOMS IN JINCHUAN PEAT

作　　者：易丽[1] 洪业汤[1] 朱咏煊[1] 王多君[2] 王华[1] 

机构地区：[1]中国科学院地球化学研究所环境地球化学国家重点实验室 [2]中国科学院地球化学研究所地球深部物质与流体作用地球化学实验室,贵州贵阳550002

出　　处：《地质地球化学》2003年第2期90-92,共3页Geology-Geochemistry

基　　金：国家自然科学基金重点项目 ( 4 0 2 3 10 0 7)

摘　　要：在湖泊沉积物实验方法基础上 ,初步建立了泥炭中硅藻的提取方法 ,并利用扫描电镜在金川泥炭中首次发现了硅藻 ,根据其形貌特征确定了科属 ,发现研究区硅藻以生活在浅淡水中的舟形藻科为主 ,该类硅藻可能具有一定的季节意义。On the basis of the methods applied to lake sediments, a new method of extracting diatoms from peat has been developed. Diatoms in Jinchuan peat were first found by SEM, and the species of diatoms were identified according to their configurative characters. It is found that Naviculaceae, which exists in flat and fresh water, is the dominant species and this kind of diatoms perhaps may have some seasonal implication.

关 键 词：湖泊沉积物 金川泥炭 硅藻 提取方法 扫描电镜 形貌特征 舟形藻科 古环境 古气候 古生态 古地理 

分 类 号：Q914.82[天文地球—古生物学与地层学] P53[生物学—古生物学]